<s>
This	O
is	O
a	O
list	O
of	O
notable	O
software	B-Application
packages	O
which	O
were	O
published	O
under	O
a	O
proprietary	B-Application
software	I-Application
license	I-Application
but	O
later	O
released	O
as	O
free	B-Application
and	O
open-source	B-Application
software	I-Application
,	O
or	O
into	O
the	O
public	O
domain	O
.	O
</s>
<s>
In	O
some	O
cases	O
,	O
the	O
company	O
continues	O
to	O
publish	O
proprietary	B-Application
releases	O
alongside	O
the	O
non-proprietary	O
version	O
.	O
</s>
<s>
+List	O
of	O
formerly	O
proprietary	B-Application
and	O
closed-source	B-Application
software	I-Application
Title	O
Original	O
release	O
Relicensed	O
release	O
Initial	O
free	B-Application
relicense	O
Notes	O
3D	B-Application
Movie	I-Application
Maker	I-Application
1995	O
2022	O
MIT	B-License
The	O
source	O
code	O
and	O
assets	O
for	O
entire	O
program	O
(	O
minus	O
fonts	O
)	O
was	O
uploaded	O
to	O
GitHub	B-Application
on	O
May	O
4	O
,	O
2022	O
under	O
the	B-License
MIT	I-License
License	I-License
.	O
</s>
<s>
Adobe	B-Operating_System
Flex	I-Operating_System
2004	O
2007	O
MPL-1.1	B-License
Since	O
renamed	O
to	O
Apache	B-Operating_System
Flex	I-Operating_System
and	O
changed	O
to	O
Apache-2.0	B-Application
AdvFS	B-Application
1990s	O
2008	O
GPL-2.0-only	B-License
HP	O
opened	O
up	O
AdvFS	B-Application
from	O
Tru64	O
UNIX	B-Application
.	O
</s>
<s>
AOLserver	B-Language
1999	O
GPL	B-License
/	O
modified	O
MPL	B-License
Apache	B-Language
Derby	I-Language
1996	O
2004	O
Apache-2.0	B-Application
Relational	B-Application
database	I-Application
management	I-Application
system	I-Application
originally	O
called	O
Cloudscape	B-Language
;	O
released	O
as	O
free	B-Application
and	O
open-source	B-Application
software	I-Application
by	O
IBM	O
in	O
2004	O
and	O
donated	O
to	O
the	O
Apache	O
Software	B-Application
Foundation	O
Apache	B-Application
Wave	I-Application
2009	O
2009	O
Apache-2.0	B-Application
Formerly	O
Google	B-Application
Wave	I-Application
.	O
</s>
<s>
Apus	B-Application
Game	I-Application
Engine	I-Application
2008	O
2020	O
BSD-3-Clause	B-Operating_System
Released	O
to	O
the	O
public	O
by	O
the	O
developer	O
after	O
reaching	O
a	O
Patreon	O
goal	O
.	O
</s>
<s>
Astrolog	B-Language
1991	O
2015	O
GPL-2.0-or-later	B-License
/	O
custom	O
permissive	O
Has	O
always	O
been	O
freeware	B-License
and	O
open	B-Application
source	I-Application
,	O
but	O
had	O
a	O
custom	O
attribution	O
demanding	O
permissive	O
license	O
.	O
</s>
<s>
Atom	B-Application
2014	O
2014	O
MIT	B-License
BASIC	B-Application
Computer	I-Application
Games	I-Application
1973	O
2021	O
Public-domain	B-Application
software	I-Application
(	O
Unlicense	B-License
)	O
On	O
December	O
31	O
,	O
2021	O
,	O
Jeff	O
Atwood	O
published	O
an	O
updated	O
version	O
of	O
the	O
101	O
games	O
included	O
in	O
the	O
original	O
BASIC	B-Application
Computer	I-Application
Games	I-Application
on	O
GitHub	B-Application
under	O
the	B-License
Unlicense	I-License
,	O
with	O
permission	O
of	O
David	O
H	O
.	O
Ahl	O
.	O
</s>
<s>
On	O
June	O
15	O
,	O
2022	O
,	O
Ahl	O
formally	O
released	O
everything	O
he	O
had	O
ever	O
written	O
or	O
edited	O
,	O
from	O
prose	O
to	O
software	B-Application
,	O
into	O
the	O
public	O
domain	O
;	O
which	O
includes	O
titles	O
like	O
More	O
BASIC	B-Application
Computer	I-Application
Games	I-Application
and	O
BASIC	O
Computer	O
Adventures	O
.	O
</s>
<s>
BDS	B-Application
C	I-Application
Compiler	I-Application
1979	O
2002	O
Public	O
domain	O
Released	O
by	O
author	O
BitKeeper	B-Protocol
2000	O
2016	O
Apache-2.0	B-Application
Bitstream	O
Vera	O
(	O
font	O
)	O
2003	O
custom	O
Through	O
the	O
efforts	O
of	O
Bitstream	O
and	O
the	O
GNOME	O
FoundationBlades	O
of	O
Exile	O
1997	O
2007	O
CPL-1.0	O
Relicensed	O
to	O
the	O
GPL-2.0-only	B-License
at	O
some	O
point	O
between	O
14	O
May	O
2007	O
and	O
12	O
June	O
2007	O
.	O
</s>
<s>
Blender	B-Application
1996	O
2003	O
GPL-2.0-or-later	B-License
BlitzBASIC	B-Language
(	O
Blitz3D	O
,	O
BlitzPlus	O
,	O
BlitzMax	B-Language
)	O
2001	O
2014	O
Zlib	B-License
BlitzPlus	O
was	O
released	O
as	O
Open	B-Application
Source	I-Application
on	O
28	O
April	O
2014	O
under	O
the	O
Zlib	B-License
license	I-License
on	O
github.com.BlitzPlus	O
Source	O
Code	O
Released	O
by	O
simonh	O
(	O
2014-04-29	O
)	O
Blitz3D	O
open	O
sourced	O
!	O
</s>
<s>
on	O
Blitz3D	O
Forums	O
by	O
(	O
2014	O
)	O
Blitz3D	O
follow	O
on	O
3	O
August	O
2014.Blitz3D	O
Now	O
Free	B-Application
and	O
Open	B-Application
Source	I-Application
!	O
</s>
<s>
by	O
simonh	O
(	O
2014-08-03	O
)	O
blitz3d	O
on	O
github.com	B-Application
BlitzMax	B-Language
was	O
open	O
sourced	O
on	O
21	O
September	O
2015.blitzmax	O
on	O
github.com	B-Application
BRender	B-Application
1995	O
2022	O
MIT	B-License
Source	O
code	O
for	O
1997	O
and	O
1998	O
versions	O
released	O
under	O
the	B-License
MIT	I-License
License	I-License
on	O
GitHub	B-Application
on	O
May	O
3	O
,	O
2022	O
.	O
</s>
<s>
The	O
source	O
code	O
for	O
3D	B-Application
Movie	I-Application
Maker	I-Application
,	O
a	O
computer	B-Application
program	I-Application
using	O
the	O
engine	O
was	O
also	O
released	O
under	O
the	O
same	O
license	O
.	O
</s>
<s>
C-Dogs	B-Application
1999	O
2002	O
–	O
2016	O
Public-domain	O
software/CC	O
BY	O
3.0	O
Source	O
code	O
released	O
to	O
the	O
public	O
on	O
February	O
13	O
,	O
2002	O
,	O
under	O
a	O
public-domain-equivalent	O
license	O
.	O
</s>
<s>
The	O
graphics	O
were	O
re-licensed	O
to	O
the	O
CC	O
BY	O
3.0	O
license	O
on	O
April	O
13	O
,	O
2016	O
.	O
</s>
<s>
Cafu	B-Language
Engine	I-Language
2000	O
2009	O
GPL-3.0-or-later	B-License
Originally	O
released	O
under	O
the	O
GPL-3.0-or-later	B-License
license	O
(	O
with	O
an	O
option	O
for	O
a	O
commercial	B-License
license	I-License
)	O
,	O
in	O
2016	O
was	O
re-licensed	O
under	O
the	B-License
MIT	I-License
license	I-License
.	O
</s>
<s>
Catacomb	B-Application
1989	O
2014	O
GPL-2.0-or-later	B-License
Catacomb	B-Application
II	I-Application
1991	O
2014	O
GPL-2.0-or-later	B-License
Catacomb	B-Application
Abyss	O
1992	O
2014	O
GPL-2.0-or-later	B-License
Catacomb	B-Application
Armageddon	O
1992	O
2014	O
GPL-2.0-or-later	B-License
Catacomb	B-Application
3D	I-Application
1991	O
2014	O
GPL-2.0-or-later	B-License
C*Base	B-Protocol
1980s	O
2003	O
GPL-2.0-or-later	B-License
Cemu	B-Application
2015	O
2022	O
MPL-2.0	B-License
Source	O
code	O
released	O
under	O
the	O
Mozilla	B-License
Public	I-License
License	I-License
2.0	I-License
on	O
August	O
24	O
,	O
2022	O
.	O
</s>
<s>
CDE	B-Application
1993	O
2012	O
LGPL-2.0-or-later	B-Application
ChakraCore	B-Language
2009	O
2016	O
MITOn	O
13	O
January	O
2016	O
Microsoft	O
released	O
ChakraCore	B-Language
under	O
the	B-License
MIT	I-License
license	I-License
on	O
GitHub.Microsoft	O
open	B-License
sources	I-License
Edge	O
web	O
browser	O
's	O
JavaScript	O
engine	O
,	O
plans	O
port	O
to	O
Linux	B-Application
on	O
zdnet.com	O
by	O
Steven	O
J	O
.	O
Vaughan-Nichols	O
(	O
on	O
2016-01-13	O
)	O
ChakraCore	B-Language
is	O
essentially	O
the	O
same	O
as	O
the	O
Chakra	B-Language
engine	O
that	O
powers	O
the	O
Microsoft	B-Application
Edge	I-Application
browser	O
,	O
but	O
with	O
platform-agnostic	O
bindings	O
,	O
i.e.	O
</s>
<s>
CMU	B-General_Concept
Sphinx	I-General_Concept
2000	O
Custom	O
BSD-style	B-Operating_System
license	I-Operating_System
CodeXL	B-Language
2016	O
MIT	B-License
Coherent	B-Operating_System
1980	O
2015	O
BSD-3-Clause	B-Operating_System
CP/M	B-Application
family	O
1974	O
1997	O
,	O
2001	O
,	O
2014	O
CuneiForm	B-Language
1993	O
2008	O
BSD-3-Clause	B-Operating_System
Optical	B-Application
character	I-Application
recognition	I-Application
software	I-Application
Dink	B-Application
Smallwood	I-Application
1998	O
2003	O
zlib-like	O
Some	O
game	O
data	O
(	O
e.g.	O
</s>
<s>
sounds	O
)	O
not	O
released	O
under	O
a	O
free	B-Application
license	O
.	O
</s>
<s>
DOS.MASTER	O
end	O
1980s	O
2000	O
public	B-Application
domain	I-Application
software	I-Application
DOS.MASTER	O
is	O
a	O
program	O
for	O
Apple	B-Device
II	I-Device
computers	O
which	O
allows	O
Apple	B-Operating_System
DOS	I-Operating_System
3.3	I-Operating_System
programs	O
to	O
be	O
placed	O
on	O
a	O
hard	B-Device
drive	I-Device
or	O
3.5-inch	O
floppy	B-Device
disk	I-Device
and	O
run	O
from	O
ProDOS	B-Operating_System
.	O
</s>
<s>
Written	O
by	O
Glen	O
Bredon	O
as	O
a	O
commercial	O
program	O
during	O
the	O
late	O
1980s	O
,	O
it	O
was	O
released	O
into	O
the	O
public	O
domain	O
by	O
his	O
family	O
after	O
the	O
author	O
's	O
death.Public.Domain.notice.txt	O
on	O
apple2.org.za	O
Duke	B-Application
Nukem	I-Application
3D	I-Application
1996	O
2003	O
GPL-2.0-or-later	B-License
Game	O
code	O
only	O
,	O
no	O
data	O
,	O
no	O
engine	O
.	O
</s>
<s>
Etherpad	B-Language
2008	O
2009	O
Apache-2.0	B-Application
Open	O
sourced	O
after	O
being	O
purchased	O
by	O
Google	B-Application
Extensible	B-Application
Storage	I-Application
Engine	I-Application
1994	O
2021	O
MIT	B-License
Falcon	B-Language
2007	O
GPL	B-License
FAR	B-Language
Manager	I-Language
1996	O
2007	O
BSD-3-Clause	B-Operating_System
Version	O
2.0	O
released	O
as	O
open	B-Application
source	I-Application
.	O
</s>
<s>
File	B-Application
Manager	I-Application
(	O
Windows	O
)	O
1990	O
April	O
2018	O
MIT	B-License
On	O
6	O
April	O
2018	O
,	O
Microsoft	O
released	O
binaries	O
and	O
the	O
source	O
code	O
,	O
licensed	B-License
under	O
the	B-License
MIT	I-License
license	I-License
,	O
for	O
an	O
improved	O
version	O
of	O
File	B-Application
Manager	I-Application
able	O
to	O
be	O
run	O
on	O
Windows	O
10	O
.	O
</s>
<s>
Fish	B-Application
Fillets	I-Application
1998	O
2002	O
GPL-2.0-or-later	B-License
Free	B-Protocol
Download	I-Protocol
Manager	I-Protocol
2003	O
2007	O
GPL-3.0-only	B-License
Free	B-Application
since	O
version	O
2.5Free	O
Download	O
Manager	O
»	O
Blog	O
Archive	O
»	O
FDM	O
2.5	O
is	O
released	O
!	O
</s>
<s>
FoundationDB	B-Operating_System
2013	O
2018	O
Apache-2.0	B-Application
Apple	O
Inc	O
.	O
acquired	O
the	O
founding	O
company	O
in	O
March	O
2015	O
and	O
discontinued	O
downloads	O
of	O
the	B-Application
software	I-Application
.	O
</s>
<s>
Game-Maker	B-Application
1991	O
2014	O
MIT	B-License
After	O
some	O
consultation	O
with	O
the	O
user	O
base	O
,	O
on	O
12	O
July	O
2014	O
original	O
coder	O
Andy	O
Stone	O
released	O
the	O
Game-Maker	B-Application
3.0	O
source	O
code	O
on	O
GitHub	B-Application
,	O
under	O
the	O
MIT	B-License
license.G.	O
</s>
<s>
Andrew	O
Stone	O
,	O
"	O
Recreational	O
Software	B-Application
Design	O
's	O
GameMaker	O
product	O
,	O
released	O
in	O
1994	O
"	O
GGPO	B-Application
2006	O
2019	O
MIT	B-License
On	O
9	O
October	O
2019	O
Cannon	O
announced	O
on	O
his	O
Twitter	O
account	O
that	O
GGPO	B-Application
was	O
now	O
open	B-Application
source	I-Application
and	O
available	O
under	O
the	B-License
MIT	I-License
license	I-License
.	O
</s>
<s>
Ghostery	B-Operating_System
2010	O
2018	O
MPL-2.0	B-License
Cliqz	B-Operating_System
GmbH	I-Operating_System
acquired	O
Ghostery	B-Operating_System
from	O
Evidon	O
,	O
Inc	O
.	O
in	O
February	O
2017	O
.	O
</s>
<s>
Ghostery	B-Operating_System
's	O
software	B-Application
was	O
open-sourced	O
on	O
8	O
March	O
2018	O
.	O
</s>
<s>
GEM	B-Application
family	O
1985	O
1999	O
GPL	B-License
Development	O
continued	O
as	O
OpenGEM	O
and	O
FreeGEM	B-Application
.	O
</s>
<s>
Gentium	O
(	O
font	O
)	O
2002	O
2005	O
OFL	B-License
Through	O
the	O
efforts	O
of	O
SIL	O
International	O
Gigablast	B-Application
2000	O
2013	O
Apache-2.0	B-Application
Glitch	B-Application
2011	O
2013	O
CC0	O
After	O
Glitch	B-Application
was	O
officially	O
shut	O
down	O
on	O
9	O
December	O
2012	O
,	O
the	O
artwork	O
and	O
most	O
of	O
the	O
source	O
code	O
was	O
released	O
under	O
the	O
CC0	O
license	O
on	O
18	O
November	O
2013	O
.	O
</s>
<s>
On	O
9	O
December	O
2014	O
,	O
a	O
fan	O
project	O
to	O
relaunch	O
Glitch	B-Application
under	O
the	O
name	O
Eleven	O
began	O
alpha	O
testing	O
.	O
</s>
<s>
GLX	B-Device
1990s	O
2008	O
SGI	O
FreeB	O
License	O
GW-BASIC	B-Language
1983	O
2020	O
MIT	B-License
Haaf	O
's	O
Game	O
Engine	O
2004	O
2005	O
LGPL-2.0	B-Application
Originally	O
released	O
under	O
the	O
LPGL-2.0	B-Application
license	O
on	O
25	O
November	O
2005	O
,	O
the	O
following	O
year	O
it	O
was	O
re-licensed	O
under	O
the	O
Zlib	B-License
license	I-License
.	O
</s>
<s>
On	O
7	O
August	O
2011	O
,	O
the	O
source	O
code	O
used	O
for	O
the	O
Mac	B-Application
OS	I-Application
X	I-Application
and	O
Linux	B-Application
ports	O
of	O
Hammerfight	B-Application
was	O
also	O
released	O
.	O
</s>
<s>
Hovertank	B-Application
3D	I-Application
1991	O
2014	O
GPL-2.0-or-later	B-License
ILWIS	B-Language
1988	O
2007	O
GPL-2.0-only	B-License
Released	O
as	O
free	B-Application
and	O
open-source	B-Application
software	I-Application
by	O
ITC	O
id	O
Tech	O
1	O
1993	O
1999	O
GPL-2.0-or-later	B-License
The	O
released	O
version	O
is	O
the	O
source	O
code	O
to	O
Doom	B-Application
.	O
</s>
<s>
The	O
sources	O
for	O
Heretic	B-Application
and	O
Hexen	B-Application
:	I-Application
Beyond	I-Application
Heretic	I-Application
(	O
other	O
two	O
games	O
using	O
the	O
Doom	B-Application
engine	O
)	O
were	O
released	O
under	O
the	O
GPL-2.0-only	B-License
license	O
.	O
</s>
<s>
The	O
source	O
code	O
for	O
the	O
Atari	B-Device
Jaguar	I-Device
version	O
of	O
Doom	B-Application
was	O
released	O
under	O
the	O
non-free	O
Doom	B-Application
Source	O
License	O
.	O
</s>
<s>
The	O
source	O
code	O
for	O
the	O
3DO	B-Device
Interactive	I-Device
Multiplayer	I-Device
port	O
of	O
Doom	B-Application
was	O
released	O
under	O
the	B-License
MIT	I-License
License	I-License
.	O
</s>
<s>
id	O
Tech	O
2	O
1996	O
1999	O
GPL-2.0-or-later	B-License
The	O
released	O
version	O
is	O
the	O
source	O
code	O
to	O
Quake	B-Application
.	O
</s>
<s>
The	O
map	O
sources	O
were	O
also	O
released	O
under	O
the	O
GPL	B-License
in	O
2006	O
.	O
</s>
<s>
In	O
2000	O
the	O
source	O
for	O
Hexen	B-Application
II	I-Application
(	O
another	O
game	O
using	O
the	O
id	O
Tech	O
2	O
engine	O
)	O
was	O
released	O
under	O
the	O
GPL-2.0-only	B-License
license	O
.	O
</s>
<s>
id	O
Tech	O
2.5	O
1997	O
2001	O
GPL-2.0-or-later	B-License
The	O
released	O
version	O
is	O
the	O
source	O
code	O
to	O
Quake	B-Application
II	I-Application
.	O
</s>
<s>
id	O
Tech	O
3	O
1999	O
2005	O
GPL-2.0-or-later	B-License
The	O
released	O
version	O
is	O
the	O
source	O
code	O
to	O
Quake	B-Application
III	I-Application
Arena	I-Application
.	O
</s>
<s>
The	O
source	O
code	O
for	O
other	O
id	O
Tech	O
3	O
games	O
,	O
such	O
as	O
Star	B-Application
Wars	I-Application
Jedi	I-Application
Knight	I-Application
II	I-Application
:	I-Application
Jedi	I-Application
Outcast	I-Application
,	O
and	O
Star	B-Application
Wars	I-Application
Jedi	I-Application
Knight	I-Application
:	I-Application
Jedi	I-Application
Academy	I-Application
was	O
also	O
released	O
.	O
</s>
<s>
id	O
Tech	O
3.5	O
2001	O
2010	O
GPL-3.0-or-later	B-License
The	O
released	O
version	O
is	O
the	O
source	O
code	O
to	O
Return	B-Application
to	I-Application
Castle	I-Application
Wolfenstein	I-Application
and	O
Wolfenstein	B-Application
:	I-Application
Enemy	I-Application
Territory	I-Application
.	O
</s>
<s>
id	O
Tech	O
4	O
2004	O
2011	O
GPL-3.0-or-later	B-License
The	O
released	O
version	O
is	O
the	O
source	O
code	O
to	O
Doom	B-Application
3	I-Application
.	O
</s>
<s>
id	O
Tech	O
4.5	O
2012	O
2012	O
GPL-3.0-or-later	B-License
The	O
released	O
version	O
is	O
the	O
source	O
code	O
to	O
Doom	B-Application
3	I-Application
:	I-Application
BFG	I-Application
Edition	I-Application
.	O
</s>
<s>
Inform	O
1993	O
2022	O
Artistic-2.0	O
Source	O
code	O
for	O
Inform	O
7	O
v10.1.0	O
released	O
on	O
GitHub	B-Application
under	O
the	O
Artistic-2.0	O
license	O
on	O
April	O
28	O
,	O
2022	O
.	O
</s>
<s>
JaikuEngine	O
2006	O
2009	O
Apache-2.0	B-Application
Java	B-Language
1995	O
2006	O
–	O
2007	O
GPL-2.0-onlyOn	O
13	O
November	O
2006	O
,	O
Sun	O
Microsystems	O
released	O
much	O
of	O
Java	B-Language
as	O
free	B-Application
software	I-Application
under	O
the	O
terms	O
of	O
the	O
GPL-2.0-only	B-License
license	O
.	O
</s>
<s>
On	O
8	O
May	O
2007	O
Sun	O
finished	O
the	O
process	O
,	O
making	O
all	O
of	O
Java	B-Language
's	O
core	O
code	O
free	B-Application
and	O
open-source	B-Application
,	O
aside	O
from	O
a	O
small	O
portion	O
of	O
code	O
to	O
which	O
Sun	O
did	O
not	O
hold	O
the	O
copyright.open.itworld.com	O
-	O
JAVAONE	O
:	O
Sun	O
-	O
The	O
bulk	O
of	O
Java	B-Language
is	O
open	O
sourced	O
Jumper	B-Protocol
2.0	I-Protocol
2007	O
2008	O
GPL	B-License
Publicly	O
announced	O
on	O
29	O
September	O
2008	O
,	O
Komodo	B-Language
IDE	I-Language
2000	O
2022	O
MPL-1.1	B-License
Open-sourced	O
on	O
December	O
8	O
,	O
2022	O
by	O
ActiveState	O
due	O
to	O
variety	O
of	O
factors	O
,	O
including	O
the	O
deprecation	O
of	O
XUL	B-Application
and	O
XULRunner	B-Language
and	O
the	O
market	O
situation	O
.	O
</s>
<s>
KornShell	B-Language
1982	O
2000	O
custom	O
;	O
now	O
CPL	O
Le	B-Language
Lisp	I-Language
1981	O
2020	O
BSD-2-Clause	B-Operating_System
LightZone	B-Language
2005	O
2012	O
BSD-3-Clause	B-Operating_System
Company	O
went	O
out	O
of	O
business	O
Lugaru	B-Application
2005	O
2010	O
–	O
2016	O
GPL-2.0-or-later/CC	O
BY-SA	O
3.0	O
Source	O
code	O
released	O
by	O
Wolfire	O
Games	O
upon	O
the	O
success	O
of	O
the	O
original	O
Humble	O
Indie	O
Bundle	O
under	O
the	O
GPL-2.0-or-later	B-License
license	O
.	O
</s>
<s>
On	O
November	O
21	O
,	O
2016	O
,	O
all	O
of	O
the	O
assets	O
(	O
including	O
those	O
of	O
Lugaru	B-Application
HD	I-Application
)	O
were	O
released	O
under	O
the	O
Creative	O
Commons	O
Attribution-ShareAlike	O
3.0	O
Unported	O
license	O
.	O
</s>
<s>
Maelstrom	B-Application
1992	O
1995	O
–	O
2010	O
GPL-2.0-or-later/CC	O
BY	O
3.0	O
Source	O
code	O
for	O
the	O
Simple	B-Operating_System
DirectMedia	I-Operating_System
Layer	I-Operating_System
Linux	B-Application
port	O
by	O
Sam	O
Lantinga	O
released	O
under	O
the	O
GNU	B-License
GPL	I-License
v2	O
on	O
December	O
7	O
,	O
1999	O
.	O
</s>
<s>
On	O
April	O
15	O
,	O
2010	O
,	O
Andrew	O
Welch	O
and	O
Ian	O
Gilman	O
allowed	O
the	O
assets	O
to	O
be	O
re-licensed	O
under	O
the	O
Creative	O
Commons	O
Attribution	O
3.0	O
license	O
.	O
</s>
<s>
Marathon	B-Application
2	I-Application
:	I-Application
Durandal	I-Application
1995	O
2000	O
GPL-2.0-or-later	B-License
Only	O
the	O
code	O
was	O
released	O
under	O
the	O
GPL-2.0-or-later	B-License
license	O
.	O
</s>
<s>
Now	O
known	O
as	O
Aleph	O
One	O
Mari0	B-Application
2012	O
2018	O
MIT	B-License
Developed	O
using	O
the	O
LÖVE	B-Application
framework	O
and	O
originally	O
available	O
under	O
the	O
CC	O
BY-NC-SA	O
3.0	O
license	O
,	O
it	O
was	O
relicensed	O
to	O
the	B-License
MIT	I-License
license	I-License
on	O
September	O
29	O
,	O
2018	O
.	O
</s>
<s>
MiniPanzer	B-Application
and	I-Application
MegaPanzer	I-Application
GPL	B-License
The	O
source	O
code	O
of	O
the	O
programs	O
was	O
released	O
under	O
the	O
GPL	B-License
in	O
2009	O
by	O
their	O
author	O
,	O
who	O
retained	O
the	O
copyright	O
.	O
</s>
<s>
MINIX	B-Operating_System
1987	O
2000	O
BSD-3-Clause	B-Operating_System
Motif	B-Application
1980s	O
2012	O
LGPL-2.1-or-later	B-Application
Movable	B-Protocol
Type	I-Protocol
2001	O
2007	O
GPL	B-License
Weblog	O
software	B-Application
MP/M	B-Operating_System
family	O
1979	O
1997	O
,	O
2001	O
MS-DOS	B-Application
1.25	O
and	O
2.0	O
1982	O
–	O
1983	O
2018	O
MIT	B-License
Originally	O
uploaded	O
by	O
the	O
Computer	O
History	O
Museum	O
in	O
2014	O
under	O
a	O
non-commercial	O
license	O
,	O
on	O
28	O
September	O
2018	O
,	O
Microsoft	O
uploaded	O
the	O
source	O
code	O
to	O
GitHub	B-Application
under	O
the	B-License
MIT	I-License
license	I-License
.	O
</s>
<s>
.NET	B-Application
Framework	I-Application
(	O
most	O
components	O
)	O
2002	O
2014	O
MIT	B-License
,	O
Apache-2.0	B-Application
,	O
BSD	B-Operating_System
license	I-Operating_System
Starting	O
in	O
2014	O
Microsoft	O
released	O
most	O
of	O
their	O
.NET	B-Application
ecosystem	O
software	B-Application
(	O
.NET	B-Application
Micro	I-Application
Framework	I-Application
,	O
.NET	B-Application
Compiler	I-Application
Platform	I-Application
,	O
ASP.NET	B-Application
,	O
Entity	B-Application
Framework	I-Application
,	O
NuGet	B-Application
etc	O
.	O
)	O
</s>
<s>
under	O
FOSS	O
licenses	O
and	O
shifted	O
the	O
code	O
to	O
a	O
GitHub	B-Application
repository.NET	O
Core	O
is	O
Open	B-Application
Source	I-Application
on	O
dotnetfoundation.org	O
(	O
November	O
2014	O
)	O
NetBeans	B-Application
1997	O
2007	O
GPL	B-License
,	O
CDDL	B-Application
An	O
integrated	B-Application
development	I-Application
environment	I-Application
(	O
IDE	O
)	O
for	O
Java	B-Language
and	O
other	O
programming	O
languages	O
Netscape	O
Enterprise	O
Server	O
2009	O
BSD	B-Operating_System
Sun	O
Microsystems	O
open	O
sourced	O
it	O
.	O
</s>
<s>
Netscape	O
Navigator/Communicator	O
1994	O
1998	O
MPL	B-License
See	O
Mozilla	B-Operating_System
OpenGL	B-Application
sample	O
implementation	O
1992	O
2008	O
SGI	O
FreeB	O
License	O
Open	B-Library
Sound	I-Library
System	I-Library
1992	O
2007	O
GPL-2.0-only	B-License
,	O
CDDL-1.0	B-Application
OpenWRT	B-Application
?	O
</s>
<s>
2003	O
GPL	B-License
As	O
Linksys	O
built	O
the	O
firmware	B-Application
for	O
their	O
WRT54G	B-Application
wireless	O
router	O
also	O
from	O
GPL'ed	O
code	O
,	O
Linksys	B-Application
WRT54G	I-Application
and	O
the	O
GPL	B-License
on	O
lkml	B-Application
(	O
2003-06-07	O
)	O
they	O
were	O
required	O
to	O
make	O
the	O
source	O
code	O
available	O
in	O
July	O
2003.The	O
Open	B-Application
Source	I-Application
WRT54G	B-Application
Story	O
By	O
Aaron	O
Weiss	O
(	O
2005-11-08	O
)	O
Linksys	O
Releases	O
GPLed	O
Code	O
for	O
WRT54G	B-Application
on	O
slashdot	O
(	O
July	O
2003	O
)	O
Performance	B-Protocol
Co-Pilot	I-Protocol
1993	O
1999	O
GPL	B-License
,	O
LGPL	B-Application
PhysX	B-Operating_System
2001	O
2018	O
BSD-3-Clause	B-Operating_System
Pinball	B-Application
Construction	I-Application
Set	I-Application
1982	O
–	O
1983	O
2013	O
MIT	B-License
Source	O
code	O
for	O
the	O
Atari	B-Device
800	I-Device
port	O
was	O
released	O
by	O
Bill	O
Budget	O
on	O
12	O
February	O
2013	O
upon	O
the	O
recovery	O
by	O
Electronic	O
Arts	O
of	O
the	O
original	O
floppies	B-Device
containing	O
the	O
source	O
code	O
.	O
</s>
<s>
On	O
24	O
February	O
2013	O
,	O
the	O
source	O
code	O
for	O
the	O
original	O
Apple	B-Device
II	I-Device
version	O
was	O
released	O
.	O
</s>
<s>
Plan	B-Operating_System
9	I-Operating_System
from	I-Operating_System
Bell	I-Operating_System
Labs	I-Operating_System
1992/1995	O
–	O
2000	O
2021	O
MIT	B-License
Applies	O
to	O
all	O
the	O
four	O
original	O
versions	O
by	O
Bell	O
Labs	O
.	O
</s>
<s>
The	O
Third	O
Edition	O
was	O
released	O
in	O
2000	O
under	O
the	O
Plan	B-Operating_System
9	I-Operating_System
License	O
,	O
a	O
license	O
not	O
approved	O
by	O
the	B-Operating_System
Free	I-Operating_System
Software	I-Operating_System
Foundation	I-Operating_System
and	O
the	O
Open	B-Application
Source	I-Application
Initiative	O
.	O
</s>
<s>
The	O
Fourth	O
Edition	O
was	O
released	O
in	O
2002	O
under	O
the	O
LPL-1.02	B-License
license	O
,	O
a	O
free	B-Application
and	O
open-source	B-Application
software	I-Application
license	O
,	O
and	O
relicensed	O
to	O
the	O
GPL-2.0-only	B-License
license	O
on	O
February	O
8	O
,	O
2014	O
,	O
by	O
the	O
University	O
of	O
California	O
,	O
Berkeley	O
with	O
the	O
permission	O
of	O
Alcatel-Lucent	O
,	O
the	O
copyright	O
holders	O
at	O
the	O
time	O
.	O
</s>
<s>
PowerShell	B-Application
2006	O
August	O
2016	O
MITOpen	O
sourced	O
by	O
Microsoft	O
in	O
August	O
2016	O
on	O
GitHub.Microsoft	O
open	B-License
sources	I-License
PowerShell	B-Application
;	O
brings	O
it	O
to	O
Linux	B-Application
and	O
OS	O
X	O
by	O
Mary	O
Jo	O
Foley	O
on	O
zdnet.com	O
(	O
2016-08-18	O
)	O
Qt	B-Language
1991	O
1999	O
QPL	B-Language
First	O
released	O
as	O
open	B-Application
source	I-Application
under	O
the	O
QPL	B-Language
license	O
.	O
</s>
<s>
Later	O
released	O
under	O
the	O
GPL	B-License
license	I-License
.	O
</s>
<s>
Qt	B-Language
4.5	O
and	O
later	O
are	O
released	O
under	O
the	O
LGPL	B-Application
license	I-Application
.	O
</s>
<s>
Until	O
2005	O
the	O
Windows	O
version	O
was	O
only	O
under	O
a	O
proprietary	B-License
license	I-License
.	O
</s>
<s>
RakNet	B-Language
2003	O
2014	O
BSD-2-Clause	B-Operating_System
Oculus	B-Application
VR	I-Application
acquired	O
RakNet	B-Language
and	O
open-sourced	O
it	O
shortly	O
after	O
.	O
</s>
<s>
Rebol	B-Application
1997	O
2012	O
Apache-2.0	B-Application
Following	O
the	O
discussion	O
with	O
Lawrence	O
Rosen	O
,	O
the	O
Rebol	B-Application
version	O
3	O
interpreter	O
was	O
released	O
under	O
the	O
Apache-2.0	B-Application
license	O
on	O
12	O
December	O
2012	O
.	O
</s>
<s>
Rise	B-Application
of	I-Application
the	I-Application
Triad	I-Application
1994	O
2002	O
GPL-2.0-or-later	B-License
Only	O
the	O
code	O
was	O
released	O
under	O
the	O
GPL-2.0-or-later	B-License
license	O
.	O
</s>
<s>
Ryzom	B-Protocol
2004	O
2010	O
AGPL-3.0-or-later	B-Application
Sandboxie	B-Application
2004	O
2020	O
GPL-3.0-or-later	B-License
The	O
final	O
5.40	O
version	O
was	O
a	O
source	O
code-only	O
release	O
,	O
published	O
a	O
year	O
after	O
Sophos	O
announced	O
its	O
discontinuation	O
of	O
development	O
.	O
</s>
<s>
Second	B-Application
Life	I-Application
client	O
2003	O
2007	O
GPL-2.0	B-License
Second	B-Application
Reality	I-Application
1993	O
2013	O
Public	B-Application
domain	I-Application
software	I-Application
(	O
Unlicense	B-License
)	O
Released	O
by	O
Jussi	O
Laakkonen	O
,	O
former	O
member	O
of	O
Future	O
Crew	O
,	O
to	O
celebrate	O
the	O
20th	O
anniversary	O
of	O
the	O
original	O
release	O
.	O
</s>
<s>
SimCity	B-Application
1989	O
2007	O
GPL-3.0-or-later	B-License
Free	B-Application
version	O
released	O
as	O
'	O
Micropolis	B-Application
 '	O
Solar2D	B-Operating_System
2009	O
2019	O
GPL-3.0	B-License
Originally	O
released	O
under	O
the	O
GPL-3.0	B-License
license	O
(	O
with	O
an	O
option	O
for	O
a	O
commercial	B-License
license	I-License
)	O
,	O
the	O
following	O
year	O
it	O
was	O
re-licensed	O
under	O
the	B-License
MIT	I-License
license	I-License
.	O
</s>
<s>
Solaris	B-Application
1989	O
2005	O
CDDL	B-Application
Free	B-Application
version	O
released	O
as	O
OpenSolaris	B-Operating_System
,	O
which	O
was	O
discontinued	O
in	O
2010	O
.	O
</s>
<s>
Forked	O
as	O
Illumos	B-Application
.	O
</s>
<s>
Soldat	B-Language
2002	O
2020	O
MIT/CC	O
BY	O
4.0	O
Originally	O
limited	O
to	O
the	O
game	O
engine	O
,	O
assets	O
followed	O
shortly	O
after	O
under	O
CC	O
BY	O
4.0	O
license.Soldat	O
asset	O
license	O
on	O
github.com	B-Application
Source	B-Device
Code	I-Device
Control	I-Device
System	I-Device
1972	O
2006	O
CDDL	B-Application
StarOffice	B-Application
1986	O
2000	O
LGPL/SISSL	O
Free	B-Application
version	O
released	O
as	O
OpenOffice.org,	O
later	O
released	O
only	O
under	O
the	O
LGPL	B-Application
license	I-Application
.	O
</s>
<s>
(	O
OpenOffice.org	B-Application
was	O
discontinued	O
in	O
2011	O
,	O
but	O
forks	B-Application
—	O
most	O
prominently	O
LibreOffice	B-Application
(	O
licensed	B-License
under	O
the	O
MPL-2.0	B-License
license	O
)	O
and	O
Apache	B-Application
OpenOffice	I-Application
(	O
licensed	B-License
under	O
the	O
Apache-2.0	B-Application
license	O
)	O
—	O
have	O
become	O
its	O
dominant	O
successors	O
.	O
)	O
</s>
<s>
StarOffice	B-Application
was	O
still	O
released	O
separately	O
under	O
a	O
proprietary	B-License
license	I-License
,	O
using	O
mostly	O
the	O
same	O
code	O
,	O
until	O
its	O
discontinuing	O
in	O
2011	O
;	O
Sun	O
required	O
all	O
contributors	O
to	O
the	O
main	O
OpenOffice.org	B-Application
project	O
assign	O
joint	O
copyright	O
to	O
Sun	O
.	O
</s>
<s>
Star	O
Ruler	O
2	O
2015	O
2018	O
MIT	B-License
/	O
CC	O
BY-NC	O
2.0	O
Source	O
code	O
and	O
assets	O
re-released	O
to	O
the	O
public	O
(	O
except	O
for	O
music	O
,	O
which	O
is	O
kept	O
proprietary	B-Application
)	O
.	O
</s>
<s>
The	O
assets	O
are	O
under	O
a	O
non-free	O
CC	O
BY-NC	O
2.0	O
license	O
.	O
</s>
<s>
Stride	B-Operating_System
2014	O
2014	O
GPL-3.0	B-License
Originally	O
released	O
under	O
the	O
GPL-3.0	B-License
license	O
(	O
with	O
an	O
option	O
for	O
a	O
commercial	B-License
license	I-License
)	O
,	O
it	O
became	O
proprietary	B-Application
in	O
2017	O
,	O
and	O
it	O
was	O
re-licensed	O
to	O
the	B-License
MIT	I-License
license	I-License
in	O
2018	O
.	O
</s>
<s>
Super	B-Operating_System
Lemonade	I-Operating_System
Factory	I-Operating_System
2012	O
2012	O
–	O
2021	O
MIT/GPL	O
-3.0-only	O
Source	O
code	O
for	O
the	O
Adobe	B-Operating_System
AIR	I-Operating_System
(	O
Microsoft	O
Windows/Mac	O
OS	O
X	O
)	O
and	O
Flixel	O
(	O
iOS	B-Application
)	O
versions	O
was	O
released	O
on	O
27	O
July	O
2012	O
on	O
GitHub	B-Application
under	O
the	B-License
MIT	I-License
License	I-License
,	O
the	O
assets	O
were	O
included	O
but	O
were	O
not	O
free	B-Application
.	O
</s>
<s>
The	O
entire	O
source	O
code	O
repository	O
for	O
the	O
Ouya	B-Application
version	O
was	O
released	O
on	O
4	O
February	O
2021	O
under	O
the	O
GPL-3.0-only	B-License
license	O
.	O
</s>
<s>
Symbian	B-Operating_System
platform	I-Operating_System
1998	O
2010	O
EPL	B-License
Synfig	B-Language
2001	O
2005	O
GPL-2.0-or-later	B-License
Some	O
more	O
information	O
is	O
available	O
on	O
the	O
Synfig	B-Language
history	O
page	O
.	O
</s>
<s>
Tesseract	B-Language
OCR	I-Language
1985	O
2005	O
Apache-2.0	B-Application
Released	O
as	O
free	B-Application
and	O
open-source	B-Application
software	I-Application
by	O
HP	O
and	O
UNLV	O
TextSecure	B-Protocol
2010	O
2011	O
GPL-3.0	B-License
Since	O
renamed	O
to	O
Signal	B-Application
Torque	O
2D/iTorque	O
2D	O
2006	O
–	O
2009	O
2013	O
MIT	B-License
A	O
combination	O
of	O
Torque	O
2D	O
and	O
iTorque	O
,	O
named	O
Torque	O
2D	O
MIT	B-License
,	O
was	O
released	O
under	O
the	B-License
MIT	I-License
license	I-License
by	O
GarageGames	O
.	O
</s>
<s>
The	O
source	O
code	O
for	O
Larva	B-Application
Mortus	I-Application
,	O
a	O
game	O
using	O
the	O
engine	O
,	O
was	O
released	O
on	O
1	O
May	O
2009	O
under	O
a	O
non-free	O
non-commercial	O
license	O
.	O
</s>
<s>
Torque	O
3D	O
2001	O
2012	O
MIT	B-License
Developed	O
for	O
Tribes	B-Operating_System
2	I-Operating_System
.	O
</s>
<s>
Released	O
as	O
free	B-Application
and	O
open-source	B-Application
software	I-Application
by	O
GarageGames	O
.	O
</s>
<s>
TurboCASH	B-Application
1985	O
2003	O
GPL	B-License
Two	O
Tribes	O
Engine	O
2007	O
2021	O
GPL-2.0-only	B-License
On	O
December	O
17	O
,	O
2021	O
,	O
Two	O
Tribes	O
released	O
the	O
source	O
code	O
to	O
their	O
in-house	O
game	O
engine	O
under	O
the	O
terms	O
of	O
the	O
GPL-2.0-only	B-License
license	O
(	O
with	O
an	O
option	O
for	O
a	O
proprietary	B-License
license	I-License
)	O
.	O
</s>
<s>
Ancient	B-Operating_System
UNIX	I-Operating_System
(	O
Version	B-Operating_System
6	I-Operating_System
Unix	I-Operating_System
,	O
Version	B-Operating_System
7	I-Operating_System
Unix	I-Operating_System
,	O
UNIX/32V	B-Operating_System
)	O
1971	O
—	O
1979	O
2002	O
BSD-4-Clause	O
The	O
source	O
code	O
for	O
the	O
versions	O
1	O
to	O
7	O
of	O
Unix	B-Application
and	O
UNIX/32V	B-Operating_System
was	O
re-licensed	O
by	O
Caldera	O
International	O
(	O
later	O
SCO	O
Group	O
)	O
under	O
the	O
BSD-4-Clause	O
free-software	B-License
license	I-License
.	O
</s>
<s>
ViewMAX	B-Application
1990	O
1999	O
GPL	B-License
Visual	B-Language
Studio	I-Language
Code	I-Language
2015	O
2015	O
MIT	B-License
Warzone	B-Application
2100	I-Application
1999	O
2004	O
GPL-2.0-or-later	B-License
Video	O
game	O
by	O
Eidos	O
Interactive	O
Watcom	B-Application
C	I-Application
compiler	I-Application
1988	O
2003	O
Sybase	O
Open	B-Application
Watcom	I-Application
Public	O
License	O
Free	B-Application
version	O
released	O
as	O
Open	B-Application
Watcom	I-Application
under	O
a	O
license	O
which	O
is	O
considered	O
non-free	O
by	O
the	O
GNU	O
projectWatcom	O
on	O
gnu.org	O
but	O
acceptable	O
by	O
the	O
OSI	O
.	O
</s>
<s>
Windows	B-Application
Calculator	I-Application
1985	O
2019	O
MIT	B-License
Windows	B-Application
1.0	I-Application
,	O
released	O
in	O
November	O
1985	O
,	O
included	O
the	O
first	O
iteration	O
of	O
Windows	B-Application
Calculator	I-Application
.	O
</s>
<s>
In	O
March	O
2019	O
,	O
Microsoft	O
released	O
the	O
source	O
code	O
of	O
Windows	B-Application
Calculator	I-Application
under	O
the	B-License
MIT	I-License
license	I-License
.	O
</s>
<s>
Windows	B-Application
Console	I-Application
2019	O
MIT	B-License
In	O
2019	O
,	O
the	O
Windows	B-Application
Console	I-Application
infrastructure	O
was	O
open-sourced	O
under	O
the	B-License
MIT	I-License
license	I-License
,	O
alongside	O
Windows	B-Language
Terminal	I-Language
.	O
</s>
<s>
Windows	B-Protocol
Live	I-Protocol
Writer	I-Protocol
2012	O
2015	O
MIT	B-License
An	O
open	B-Application
source	I-Application
fork	B-Application
of	O
Windows	B-Protocol
Live	I-Protocol
Writer	I-Protocol
was	O
released	O
as	O
Open	B-Protocol
Live	I-Protocol
Writer	I-Protocol
by	O
Microsoft	O
on	O
9	O
December	O
2015.Microsoft	O
open-sources	B-Application
Live	B-Protocol
Writer	I-Protocol
,	O
beloved	O
but	O
abandoned	O
blogging	O
tool	O
by	O
Peter	O
Bright	O
on	O
Ars	O
Technica	O
"	O
Opening	O
the	O
app	O
means	O
that	O
it	O
'll	O
get	O
some	O
much-needed	O
maintenance.	O
"	O
</s>
<s>
(	O
2015	O
)	O
Wintermute	B-Application
Engine	I-Application
2003	O
2009	O
LGPL-3.0-or-later	B-Application
Source	O
code	O
released	O
upon	O
request	O
under	O
the	O
LGPL-3.0-or-later	B-Application
license	O
with	O
the	O
release	O
of	O
the	O
version	O
1.8.9	O
.	O
</s>
<s>
Publicly	O
available	O
under	O
the	O
terms	O
of	O
the	B-License
MIT	I-License
license	I-License
since	O
March	O
23	O
,	O
2013	O
.	O
</s>
<s>
The	O
source	O
code	O
for	O
The	B-Application
White	I-Application
Chamber	I-Application
,	O
a	O
game	O
using	O
the	O
engine	O
,	O
was	O
released	O
on	O
30	O
June	O
2008	O
under	O
a	O
non-free	O
CC	O
BY-NC-SA	O
2.0	O
UK	O
license	O
.	O
</s>
<s>
Wire	B-Application
2014	O
2016	O
GPL-3.0	B-License
Wolfenstein	O
3D	O
engine	O
1992	O
GPL-2.0-or-later	B-License
Originally	O
released	O
under	O
a	O
restrictive	O
license	O
on	O
21	O
July	O
1995	O
,	O
it	O
was	O
relicensed	O
to	O
the	O
GPL	B-License
at	O
some	O
point.readme_iWolf.txt	O
:	O
«	O
I	O
released	O
the	O
original	O
source	O
for	O
Wolfenstein	O
3D	O
many	O
years	O
ago	O
,	O
originally	O
under	O
a	O
not-for-commercial	O
purposes	O
license	O
,	O
then	O
later	O
under	O
the	O
GPL.	O
»	O
The	O
source	O
code	O
for	O
Rise	B-Application
of	I-Application
the	I-Application
Triad	I-Application
and	O
Blake	B-Application
Stone	I-Application
:	I-Application
Planet	I-Application
Strike	I-Application
(	O
two	O
games	O
using	O
the	O
engine	O
)	O
was	O
also	O
released	O
under	O
the	O
GPL-2.0-or-later	B-License
.	O
</s>
<s>
Worms	B-Application
?	I-Application
</s>
<s>
1983	O
2021	O
MIT	B-License
XMind	B-Language
2007	O
2008	O
EPL	B-License
and	O
LGPL	B-Application
Mindmapping	O
software	B-Application
based	O
on	O
the	O
Eclipse	O
RCP	O
YSFlight	B-Application
1999	O
2022	O
BSD-3-Clause	B-Operating_System
ZFS	B-Application
200	O
?	O
</s>
<s>
2005	O
CDDL	B-Application
Released	O
by	O
Sun	O
Microsystems	O
under	O
an	O
open-source	B-Application
license	O
in	O
2005.Sun	O
opens	O
ZFS	B-Application
source	O
code	O
on	O
Ars	O
Technica	O
by	O
Ryan	O
Paul	O
(	O
2005-11-17	O
)	O
Due	O
to	O
a	O
FSF	B-Operating_System
announced	O
license	O
incompatibility	O
of	O
the	O
GPL	B-License
with	O
the	O
CDDL	B-Application
,	O
ZFS	B-Application
was	O
n't	O
directly	O
integrated	O
in	O
Linux	B-Application
,	O
but	O
in	O
the	O
BSDs	O
or	O
MacOS	B-Application
due	O
to	O
their	O
permissive	O
licensed	B-License
kernel	O
which	O
offers	O
better	O
license	O
compatibility	O
.	O
</s>
